Amplitude plot
Graphic representation of the amplitude response . Together with the graphically represented phase-frequency response it forms the frequency characteristic ( Bode diagram ) according to DIN 19 226.
Amplitude response
The amplitude response is the magnitude |F (jω)|. The two lines represent in mathematics the magnitude of the frequency response as a function of the circular frequency. Graphically the magnitude of t
Arithmetic logic unit
Computer subsystem that undertakes the mathematical operations of a digital system . The ALU is the "heart" of the microprocessor. It operates between the registers and the control unit. For this purp
Ageing of hydraulic fluids
Damage to the hydraulic fluid primarily due to oxidisation (formation of acid residues) and polymerisation (enlargement of the hydrocarbon chains); creates sludge or resin-like coatings on device part
Ageing of seals
Many of the additives contained in mineral oil act like a vulcanising agent on elastomers. For this reason vulcanisation can occur at high temperatures; this action is termed ageing. The consequence o
Alpha value of filters
The α values is defined by the multipass test according to ISO 4572. It is a measure of the total quantity of ACFTD supplied to the filter element until the permissible final pressure difference is re
Alphanumeric
Refers to a character set that comprises as a minimum the decimal numbers and letters. It is useful to define the scope of the alphanumeric character set in the specific case (EDIN 44 300 part 2).
Alphanumeric coding
A programming notation in which the letter of the alphabet and the numbers from 0 to 9 are used.
Alphanumeric display
Visual display in numbers, letters and special characters. Compared to the analogue display it reduces reading errors, but does not allow trends to be detected. Alphanumeric displays include the LED d
Algorithm
General : Specification or process that follows a specific scheme and that solves a problem. This can be a mathematical formula, a flow diagram or a program. In control technology : Algorithm is used